Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.4.1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3
Fixed In:
12.0.0, 11.6.0 HF4, 11.4.1 HF10
Opened: Oct 16, 2014 Severity: 2-Critical Related Article:
K16732
Some UDP idle flows will abort a parked iRule after the UDP idle timeout.
The impact of this issue is the iRule aborts and impacts performance. The user cannot keep accurate connection count per client using iRules.
Conditions leading to this issue include: 1) UDP virtual, drop connection on response. 2) client_closed and server_close iRule, and parked in irule for a long time 3) make the the virtual expired when iRule is parking.
Set the idle timeout to a different value in client and sever will make it happen much less frequently.
Resolve problem of double calling functions that caused iRule to abort.